:root{--bg:#07111f;--panel:#0f2036;--panel2:#132943;--text:#f5f8ff;--muted:#a5b4c8;--line:rgba(255,255,255,.10);--blue:#67a7ff;--cyan:#5fe0d1;--green:#43d99c;--gold:#f0c766;--red:#ff7b89;--max:1180px;--radius:20px;--shadow:0 22px 70px rgba(0,0,0,.28)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(circle at 10% 0%,rgba(67,217,156,.10),transparent 28%),radial-gradient(circle at 90% 5%,rgba(103,167,255,.14),transparent 32%),linear-gradient(180deg,#07111f 0%,#081626 52%,#050d17 100%);color:var(--text);font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans TC","Microsoft JhengHei",sans-serif;line-height:1.78}
a{color:inherit}.container{width:min(var(--max),calc(100% - 32px));margin:auto}.skip{position:absolute;left:-9999px}.skip:focus{left:12px;top:12px;z-index:999;background:#fff;color:#000;padding:10px}
.site-header{position:sticky;top:0;z-index:50;border-bottom:1px solid var(--line);background:rgba(7,17,31,.86);backdrop-filter:blur(18px)}.nav{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:11px;text-decoration:none;font-weight:900}.brand img{width:38px;height:38px;object-fit:contain}.brand small{display:block;color:var(--muted);font-weight:600;font-size:.69rem;letter-spacing:.08em}.nav-links{display:flex;align-items:center;gap:4px;flex-wrap:wrap;justify-content:flex-end}.nav-links a{padding:9px 11px;border-radius:10px;text-decoration:none;color:#c7d3e2;font-weight:700;font-size:.82rem}.nav-links a:hover{background:rgba(255,255,255,.06);color:#fff}.nav-links .join{background:linear-gradient(135deg,#337eff,#5fa7ff);color:#fff}.menu-toggle{display:none;border:1px solid var(--line);background:var(--panel);color:#fff;border-radius:11px;padding:9px 12px}.breadcrumb{padding:19px 0 0;color:#7f91a9;font-size:.75rem}.breadcrumb a{color:#9dc5ff;text-decoration:none}
.hero{padding:62px 0 46px}.hero-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(300px,.75fr);gap:28px;align-items:center}.eyebrow{color:var(--cyan);font-size:.76rem;letter-spacing:.15em;font-weight:900;text-transform:uppercase}h1{font-size:clamp(2.15rem,5vw,4.35rem);line-height:1.12;margin:13px 0 20px;letter-spacing:-.035em}.lead{color:#b3c1d4;font-size:clamp(1rem,2vw,1.18rem);max-width:850px;margin:0}.hero-card,.card,.article,.side-card,.tool,.notice,.faq details{border:1px solid var(--line);background:linear-gradient(145deg,rgba(15,32,54,.96),rgba(8,22,39,.96));border-radius:var(--radius);box-shadow:var(--shadow)}.hero-card{padding:25px}.hero-card h2{font-size:1.05rem;margin:0 0 12px}.hero-card ul{padding-left:1.2rem;color:#bdc9d9;margin:0}.hero-card li+li{margin-top:8px}
.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:25px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;text-decoration:none;padding:12px 17px;border-radius:12px;font-weight:900;font-size:.88rem;border:1px solid var(--line);background:#122843;color:#fff}.btn:hover{transform:translateY(-1px);border-color:rgba(103,167,255,.55)}.btn.primary{background:linear-gradient(135deg,#337eff,#5aa8ff);border-color:transparent}.btn.green{background:linear-gradient(135deg,#138c68,#35c795);border-color:transparent}.btn.gold{background:linear-gradient(135deg,#9f7924,#e0b957);border-color:transparent;color:#07111f}.btn.ghost{background:transparent}.btn.disabled{opacity:.45;pointer-events:auto}
.quick-answer{margin:10px 0 46px;padding:24px;border-left:4px solid var(--cyan)}.quick-answer h2{margin:0 0 8px;font-size:1.2rem}.quick-answer p{margin:0;color:#c3cedd}.section{padding:44px 0}.section.muted{background:rgba(255,255,255,.018);border-block:1px solid rgba(255,255,255,.045)}.section-head{max-width:780px;margin-bottom:25px}.section-head h2{font-size:clamp(1.55rem,3vw,2.35rem);line-height:1.25;margin:0 0 9px}.section-head p{margin:0;color:var(--muted)}
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.card{padding:22px;text-decoration:none;transition:.2s ease}.card:hover{transform:translateY(-3px);border-color:rgba(103,167,255,.45)}.card .kicker{font-size:.7rem;color:var(--cyan);letter-spacing:.12em;font-weight:900}.card h3{font-size:1.08rem;line-height:1.45;margin:8px 0}.card p{color:var(--muted);font-size:.89rem;margin:0}.card .more{display:inline-block;margin-top:15px;color:#90bdff;font-size:.78rem;font-weight:900}
.content-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:22px;align-items:start}.article{padding:clamp(23px,4vw,42px)}.article h2{font-size:1.65rem;line-height:1.35;margin:42px 0 13px}.article h2:first-child{margin-top:0}.article h3{font-size:1.16rem;margin:28px 0 10px}.article p,.article li{color:#c3cfde}.article strong{color:#fff}.article ul,.article ol{padding-left:1.25rem}.article li+li{margin-top:7px}.side-card{padding:20px;position:sticky;top:94px}.side-card h2{font-size:1rem;margin:0 0 12px}.side-card a{display:block;text-decoration:none;color:#aabbd0;padding:8px 0;border-bottom:1px solid rgba(255,255,255,.06);font-size:.81rem}.side-card a:hover{color:#fff}
.evidence{display:grid;gap:10px;margin:18px 0}.evidence-item{border:1px solid var(--line);border-radius:14px;padding:15px;background:rgba(255,255,255,.025)}.evidence-item strong{display:block;margin-bottom:4px}.grade{display:inline-block;padding:3px 8px;border-radius:999px;font-size:.66rem;font-weight:900;margin-right:6px}.grade.a{background:rgba(67,217,156,.14);color:#6ce2b3}.grade.b{background:rgba(240,199,102,.14);color:#f3d58b}.grade.c{background:rgba(255,123,137,.14);color:#ffa1ad}
.compare{width:100%;border-collapse:collapse;margin:18px 0;display:block;overflow:auto}.compare th,.compare td{border:1px solid var(--line);padding:12px;text-align:left;min-width:150px}.compare th{background:#122641;color:#fff}.compare td{color:#bdcada}.notice{padding:17px 19px;margin:20px 0;box-shadow:none}.notice.warning{border-color:rgba(240,199,102,.3);background:rgba(240,199,102,.06)}.notice.danger{border-color:rgba(255,123,137,.3);background:rgba(255,123,137,.06)}.notice.success{border-color:rgba(67,217,156,.3);background:rgba(67,217,156,.06)}.notice strong{display:block;margin-bottom:4px}
.faq{display:grid;gap:10px}.faq details{padding:0 18px;box-shadow:none}.faq summary{cursor:pointer;padding:16px 0;font-weight:900}.faq p{margin:0 0 17px;color:#b9c7d8}.source-list{display:grid;gap:10px}.source{border-left:3px solid var(--blue);padding:10px 14px;background:rgba(255,255,255,.025)}.source a{color:#a9ceff;font-weight:800;text-decoration:none}.source small{display:block;color:#768aa5;margin-top:4px}
.cta-band{margin:42px auto;padding:30px;border:1px solid rgba(103,167,255,.28);border-radius:24px;background:radial-gradient(circle at 90% 0%,rgba(103,167,255,.18),transparent 38%),linear-gradient(145deg,#102846,#0c1d33)}.cta-band h2{margin:0 0 8px;font-size:1.55rem}.cta-band p{color:#b7c6d9;margin:0}.steps{counter-reset:step;display:grid;gap:13px}.step{position:relative;padding:18px 18px 18px 64px;border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.025)}.step:before{counter-increment:step;content:counter(step);position:absolute;left:17px;top:17px;width:31px;height:31px;border-radius:50%;display:grid;place-items:center;background:var(--blue);font-weight:900}.step h3{margin:0 0 4px;font-size:1rem}.step p{margin:0;color:var(--muted)}
.tool{padding:24px;box-shadow:none}.tool-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:13px}.tool label{display:grid;gap:6px;color:#aebdd0;font-size:.8rem}.tool input{width:100%;border:1px solid var(--line);border-radius:11px;background:#0b1b2f;color:#fff;padding:11px}.tool-result{margin-top:18px;padding:18px;border-radius:14px;background:#0b1b2f;border:1px solid var(--line)}.tool-result strong{font-size:1.5rem;display:block}.checklist{display:grid;gap:9px}.check{display:flex;gap:10px;align-items:flex-start;padding:12px;border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.02)}.check input{margin-top:6px}.hidden{display:none!important}
.site-footer{margin-top:60px;border-top:1px solid var(--line);background:#050d17}.footer-grid{padding:38px 0;display:grid;grid-template-columns:1.1fr repeat(3,.7fr);gap:24px}.site-footer h2,.site-footer h3{font-size:.9rem;margin:0 0 11px}.site-footer p,.site-footer a{color:#8295ae;font-size:.76rem}.site-footer a{display:block;text-decoration:none;margin:7px 0}.copyright{border-top:1px solid var(--line);padding:16px 0;color:#657992;font-size:.7rem}.updated{color:#71859e;font-size:.72rem;margin-top:18px}
@media(max-width:920px){.hero-grid,.content-layout{grid-template-columns:1fr}.side-card{position:static}.grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:720px){.menu-toggle{display:block}.nav-links{display:none;position:absolute;left:16px;right:16px;top:70px;background:#0b1a2d;border:1px solid var(--line);padding:10px;border-radius:14px;box-shadow:var(--shadow)}.nav-links.open{display:grid}.nav-links a{text-align:left}.grid,.grid.two,.tool-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.hero{padding-top:38px}h1{font-size:2.45rem}}


/* === Preserved Visual Edition: match the original AKG premium homepage === */
body{
  background:
    radial-gradient(circle at 50% -10%,rgba(30,58,138,.45),transparent 36%),
    radial-gradient(circle at 5% 35%,rgba(59,130,246,.13),transparent 28%),
    radial-gradient(circle at 96% 52%,rgba(245,158,11,.10),transparent 30%),
    #070B14;
}
body::before{
  content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;opacity:.32;
  background-image:
    linear-gradient(rgba(96,165,250,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(96,165,250,.035) 1px,transparent 1px);
  background-size:42px 42px;
  mask-image:linear-gradient(to bottom,black,transparent 88%);
}
.site-header{background:rgba(15,23,42,.80);backdrop-filter:blur(16px)}
.brand img{filter:drop-shadow(0 0 10px rgba(59,130,246,.65))}
.hero{
  position:relative;overflow:hidden;
  background:radial-gradient(circle at 50% 40%,rgba(30,41,59,.94) 0%,rgba(7,11,20,.72) 66%,transparent 100%);
}
.hero::after{
  content:"";position:absolute;width:460px;height:460px;border-radius:50%;right:-130px;top:-170px;
  border:1px solid rgba(96,165,250,.19);box-shadow:0 0 80px rgba(59,130,246,.16);
  animation:premiumFloat 8s ease-in-out infinite alternate;pointer-events:none
}
@keyframes premiumFloat{to{transform:translate(-42px,42px) scale(1.08)}}
h1{
  background:linear-gradient(90deg,#fff 0%,#bfdbfe 48%,#fcd34d 100%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  text-shadow:0 0 38px rgba(96,165,250,.10)
}
.hero-card,.card,.article,.side-card,.tool,.notice,.faq details{
  background:linear-gradient(145deg,rgba(15,23,42,.96),rgba(10,24,43,.94));
  border-color:rgba(255,255,255,.075)
}
.hero-card{box-shadow:0 25px 75px rgba(0,0,0,.34),0 0 35px rgba(59,130,246,.08)}
.card{position:relative;overflow:hidden}
.card::before{
  content:"";position:absolute;left:0;top:0;width:100%;height:3px;
  background:linear-gradient(90deg,#2563eb,#60a5fa,#f59e0b);opacity:.65
}
.card:hover{transform:translateY(-8px);box-shadow:0 22px 50px rgba(59,130,246,.14)}
.btn.primary,.btn.green{
  animation:seoHeartbeat 1.8s ease-in-out infinite;
  box-shadow:0 0 25px rgba(37,99,235,.42)
}
.btn.green{box-shadow:0 0 25px rgba(16,185,129,.34)}
.btn:hover{animation-play-state:paused}
@keyframes seoHeartbeat{
  0%,58%,100%{transform:scale(1)}
  12%{transform:scale(1.045)}
  24%{transform:scale(1)}
  36%{transform:scale(1.025)}
}
.visual-return{
  display:grid;grid-template-columns:minmax(260px,.75fr) minmax(0,1.25fr);
  gap:26px;align-items:center;margin:42px auto;padding:24px;
  border:1px solid rgba(96,165,250,.25);border-radius:24px;
  background:linear-gradient(145deg,rgba(15,23,42,.94),rgba(30,58,138,.32));
  box-shadow:0 25px 70px rgba(0,0,0,.30)
}
.visual-return img{width:100%;border-radius:18px;box-shadow:0 15px 35px rgba(0,0,0,.35)}
.visual-return h2{font-size:clamp(1.45rem,3vw,2.3rem);line-height:1.3;margin:0 0 10px}
.visual-return p{color:#a9bad0;margin:0}
.original-links{display:flex;gap:9px;flex-wrap:wrap;margin-top:18px}
@media(max-width:760px){.visual-return{grid-template-columns:1fr}}


/* 2026 SEO, accessibility and layout-stability additions */
.review-status{margin:.65rem 0 0;color:#94a3b8;font-size:.86rem;line-height:1.65}
.cert-evidence-note{max-width:920px;margin:24px auto 0;color:#94a3b8;font-size:.86rem;line-height:1.65;text-align:center}
.brand img{aspect-ratio:45/13;object-fit:contain}
.visual-return img{aspect-ratio:40/21;object-fit:cover}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}


/* Vipyctmall primary brand + AKG Global companion logo lockup */
.brand img{
  width:min(360px,48vw);height:56px;max-width:none;aspect-ratio:auto;
  object-fit:contain;background:transparent;padding:0;border-radius:0;
  filter:drop-shadow(0 0 7px rgba(56,189,248,.58)) drop-shadow(0 0 16px rgba(14,165,233,.28));box-shadow:none
}
@media(max-width:720px){.brand img{width:min(260px,68vw);height:48px;padding:0}}